Test #3 Honors Review 2023

Front

What is the balanced equation for the reaction of ammonia and oxygen?

Back

4NH₃ + 5O₂ → 4NO + 6H₂O

Front

How do you calculate the mass of a product formed in a chemical reaction?

Back

Use stoichiometry based on the balanced equation and the molar masses of the reactants and products.

Front

What is the molar mass of NO (Nitric Oxide)?

Back

The molar mass of NO is approximately 30.01 g/mol.

Front

If 6.30 g of NH₃ reacts with 1.80 g of O₂, how many grams of NO are produced?

Back

1.35 g of NO are produced.

Front

What is the balanced equation for the decomposition of sodium chlorate?

Back

2 NaClO₃ (s) → 2 NaCl (s) + 3 O₂ (g)

Front

How many grams of O₂ are produced from 12.00 moles of NaClO₃?

Back

576 g of O₂ are produced.

Front

What is the relationship between moles of reactants and products in a balanced equation?

Back

The coefficients in a balanced equation represent the ratio of moles of each substance.

Front

How many moles of O₂ are consumed when 8 moles of H₂ are used in the reaction 2H₂ + O₂ → 2H₂O?

Back

4 moles of O₂ are consumed.

Front

What is the conversion factor from kPa to atm?

Back

1 atm = 101.325 kPa.

Front

Convert 255 kPa to atm.

Back

255 kPa = 2.52 atm.